#358 [Perl] If a transaction is being performed, cci_disconnect() can't work correctly.

[Jira Trac]

The responding issue in Cubrid:
http://bts4.nhncorp.com/nhnbts/browse/CUBRIDSUS-5855

The manual of cci_disconnect():
http://www.cubrid.org/manual/843/en/cci_disconnect

The cci_disconnect function disconnects all request handles created for conn_handle. If a transaction is being performed, the handles are disconnected after cci_end_tran() is executed.

We need to fix the drivers according to the [CUBRIDSUS-5855|http://bts4.nhncorp.com/nhnbts/browse/CUBRIDSUS-5855]